Hi all, I still have the same problem.
Meantime, to be sure what is going on, I reinstalled my server. So I have ubuntu 8.04, installed from scratch and updated (apt-get upgrade). I installed only ipvsadm (apt-get install ipvsadm). This is my sample config file: echo 1 > /proc/sys/net/ipv4/ip_forward echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects echo 0 > /proc/sys/net/ipv4/conf/eth0/send_redirects ipvsadm -C ipvsadm -A -t 192.168.21.100:80 -s rr -p 900 ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.1 -m -w 100 ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.2 -m -w 100 ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.3 -m -w 100 It is not working still. Any ideas ? TIA On Fri, Feb 6, 2009 at 12:38 PM, Dusan Djordjevic <[email protected]> wrote: > I just want to add few things (if they matter): > > -I am running both servers on VMWare ESX > -nothing else is running on servers (even heartbeat is down) > -network connectivity works fine, I can connect to ssh of problematic server > > On Fri, Feb 6, 2009 at 12:16 PM, Dusan Djordjevic > <[email protected]> wrote: >> Hi all, >> >> I am trying to install two LVS servers connected with Heartbeat. As >> first step i installed just two servers and tested if pure LVS is >> working. Strange, with identical setup, it works on one server, not on >> another. >> >> Here is setup: >> >> both nodes are ubuntu 8.04 >> ipvsadm is installed from standard ubuntu repo (apt-get install ipvsadm) >> >> I added following setup to /etc/rc.local >> >> echo 1 > /proc/sys/net/ipv4/ip_forward >> echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects >> echo 0 > /proc/sys/net/ipv4/conf/eth0/send_redirects >> >> From both LVS, I can reach real servers. >> >> Here is LVS setup I am testing: >> >> ipvsadm -C >> ipvsadm -A -t 192.168.21.100:80 -s rr -p 900 >> ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.1 -m -w 100 >> ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.2 -m -w 100 >> ipvsadm -a -t 192.168.21.100:80 -r 192.168.20.3 -m -w 100 >> >> On one of nodes, it works withou any problem. On other one, it is not >> working. Here is output from tcpdump (I am trying to connect to lvs on >> address 192.168.21.100 from server 192.168.21.10). >> >> r...@ucplb-second-node:~# tcpdump -ln host 192.168.21.10 >> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode >> listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes >> 06:13:54.197763 arp who-has 192.168.21.100 tell 192.168.21.10 >> 06:13:54.198226 arp reply 192.168.21.100 is-at 00:50:56:92:4d:a2 >> 06:13:54.197809 IP 192.168.21.10.46204 > 192.168.21.100.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1070655 >> 0,nop,wscale 5> >> 06:13:54.197867 IP 192.168.21.10.46204 > 192.168.20.3.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1070655 >> 0,nop,wscale 5> >> 06:13:57.186597 IP 192.168.21.10.46204 > 192.168.21.100.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1070955 >> 0,nop,wscale 5> >> 06:13:57.186645 IP 192.168.21.10.46204 > 192.168.20.3.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1070955 >> 0,nop,wscale 5> >> 06:14:03.186451 IP 192.168.21.10.46204 > 192.168.21.100.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1071555 >> 0,nop,wscale 5> >> 06:14:03.186489 IP 192.168.21.10.46204 > 192.168.20.3.80: S >> 3085705580:3085705580(0) win 5840 <mss 1460,sackOK,timestamp 1071555 >> 0,nop,wscale 5> >> >> Any idea what might cause the problem. I am very confused since I >> literally copied configuration from another node where it works. Any >> idea how to troubleshoot this ? >> >> Thank you in advance. >> >> Dusan >> > > > > -- > Dusan Djordjevic, CMO | Troxo doo | http://www.troxo.com > tel +381 18 29 29 40 | fax +381 18 526 917 | mob +381 69 22 44 617 > -- Dusan Djordjevic, CMO | Troxo doo | http://www.troxo.com tel +381 18 29 29 40 | fax +381 18 526 917 | mob +381 69 22 44 617 _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
